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Texas Instruments LM3410YMF/NOPB
- Part No.:
- LM3410YMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM3410YMF/NOPB.pdf
- Description:
- IC LED DRV RGLTR PWM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,473
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Product details
Overview
LM3410YMF/NOPB from Texas Instruments is a constant-current, 525-kHz boost/SEPIC LED driver IC with internal NMOS switch (170 mΩ), 190-mV feedback reference, and PWM dimming capability. It operates from 2.7 V to 5.5 V input, delivers up to 24 V output, and regulates LED current via external sense resistor - used in automotive interior lighting, handheld device backlighting, and HB-LED flash circuits.
For engineers reviewing the LM3410YMF/NOPB datasheet, LM3410YMF/NOPB pinout, LM3410YMF/NOPB application, or LM3410YMF/NOPB equivalent, key selection criteria include switching frequency (525 kHz), internal compensation, thermal shutdown (165°C), ultra-low shutdown current (80 nA), and SOT-23-5 package compatibility with space-constrained portable and automotive designs.
Technical Context
The LM3410YMF/NOPB implements current-mode PWM control with fixed 525-kHz oscillator and internal slope compensation. Its error amplifier compares FB voltage against 190-mV reference to adjust duty cycle, while cycle-by-cycle current limiting protects the 170-mΩ NMOS switch at up to 2.8-A peak.
It supports both boost and SEPIC topologies without external compensation components. DIM pin accepts 0–100% PWM signals (1 Hz–25 kHz) for analog-equivalent brightness control, and features undervoltage lockout (2.65 V rising) and thermal shutdown (165°C trip, 150°C recovery).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 525 kHz - enables use of sub-2.2-µH inductors and compact ceramic capacitors in portable designs |
| Feedback Reference Voltage | 190 mV ±12 mV - sets LED current via RSET = 190 mV / ILED; tight tolerance ensures accurate current regulation |
| Internal Switch RDS(on) | 170 mΩ (typ) - limits conduction loss at 2.8-A peak, supporting >85% efficiency in typical boost configurations |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.5 V) and USB-powered systems |
| Output Voltage Range | 3 V to 24 V - drives up to 7-series white LEDs (VF ≈ 3.4 V) or high-VF HB-LED strings |
| Shutdown Current | 80 nA - enables battery-critical applications requiring zero-load standby (e.g., emergency lighting timeout) |
| Thermal Shutdown | 165°C (trip), 150°C (release) - protects die under sustained overload or poor PCB thermal design |
Pinout & Package
LM3410YMF/NOPB uses the 5-pin SOT-23 package (3.00 mm × 3.00 mm), optimized for low-profile LED driver layouts with integrated power ground and minimal trace inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Power input | Supplies internal bias and NMOS switch; requires local 2.2–22 µF ceramic bypass capacitor near pin |
| GND (Pin 2) | Signal ground | Reference for FB and DIM; must be routed adjacent to FB's bottom resistor to minimize noise coupling |
| FB (Pin 3) | Current-sense feedback | Connects to bottom of RSET; regulates LED current by holding voltage at 190 mV ±12 mV |
| DIM (Pin 4) | Enable/dimming control | Logic-high (>1.8 V) enables operation; PWM duty cycle directly scales average LED current |
| SW (Pin 1) | Switch node | Drives external inductor; swings from GND to VOUT + VF(D1); requires short, low-inductance routing |
Key Features
| Feature | Design Value |
|---|---|
| Internal Compensation | Eliminates need for external compensation network - reduces BOM count and layout sensitivity in boost/SEPIC designs |
| PWM Dimming Interface | Supports 1 Hz–25 kHz PWM on DIM pin with <100 nA bias - enables flicker-free brightness control without external drivers |
| Thermal Shutdown Protection | Auto-recovery at 150°C after 165°C trip - prevents permanent damage during transient overloads or inadequate heatsinking |
| Ultra-Low Shutdown Current | 80 nA max - extends battery life in always-on standby modes (e.g., automotive courtesy lighting) |
| Fixed-Frequency Current-Mode Control | 525-kHz switching with cycle-by-cycle current limit - ensures stable regulation across wide input/output voltage ratios and load steps |
Applications
| Automotive Interior Lighting | Handheld Device Backlight |
|---|---|
Use Scenario: Illuminating dashboard buttons, ambient footwell LEDs, and door handle indicators in vehicles operating from 9–16 V battery via buck pre-regulator. IC Role / Device Role / Timing Role: Constant-current boost driver regulating 3–5 white LEDs in series; maintains brightness across cold-crank (6.5 V) to load-dump (18 V) transients. Use Value: AEC-Q100 Grade 1 qualification (–40°C to 125°C) and 165°C thermal shutdown ensure reliability in under-hood and cabin environments. | Use Scenario: Driving 2–4 parallel LED strings in smartphones or medical handhelds powered by 3.6 V Li-ion batteries. IC Role / Device Role / Timing Role: SEPIC topology LED driver enabling regulated current even as battery discharges from 4.2 V to 3.0 V - avoids dimming before cutoff. Use Value: 525-kHz switching allows use of 1.0 µH inductors and 0.47 µF ceramic caps, minimizing board area in <100 mm² PCB footprints. |
| LED Flash for Camera Modules | OLED Display Bias Supply |
Use Scenario: Delivering 500–1000 mA pulsed current for smartphone camera flash, synchronized with shutter timing. IC Role / Device Role / Timing Role: High-peak-current boost driver using internal 2.8-A switch; DIM pin accepts TTL-level trigger pulses for precise flash duration control. Use Value: 20 µs startup time and 80 nA shutdown current enable rapid activation and zero-quiescent drain between photo sessions. | Use Scenario: Providing stable bias voltage/current to OLED pixel arrays in wearables where supply rails vary with battery state. IC Role / Device Role / Timing Role: Constant-current SEPIC source delivering 12–18 V at 20–100 mA; compensates for OLED forward voltage drift over temperature and lifetime. Use Value: 190-mV feedback reference with ±6.3% tolerance ensures <±3% LED current accuracy across –40°C to 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3410XMF/NOPB | 1.6-MHz switching frequency; higher RDS(on) (190 mΩ typ); same pinout and FB reference | Better suited for ultra-compact layouts needing <1 µH inductors; lower efficiency at high ILED due to higher conduction loss | Select when board space is constrained and thermal margin allows higher switching losses |
| TPS61061DRVR | 600-kHz fixed frequency; 1.2-A switch current limit; 200-mV FB reference; integrated soft-start | Limited to lower-power LED strings (<350 mA); lacks AEC-Q100 qualification and thermal shutdown hysteresis | Choose for cost-sensitive consumer electronics where automotive reliability is not required |
Compared with LM3410YMF/NOPB, LM3410XMF/NOPB trades efficiency for smaller magnetics, while TPS61061DRVR offers simplified integration at reduced current capability and no automotive qualification - making LM3410YMF/NOPB optimal for thermally demanding, medium-power automotive and industrial LED systems.
Availability
LM3410YMF/NOPB is available at Aetrix Electronics and suitable for automotive interior lighting, handheld device backlighting, and LED flash driver applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for LM3410YMF/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and power management technologies, with leadership in high-reliability automotive and industrial ICs.
The LM3410 product line delivers monolithic, internally compensated LED drivers for space-constrained boost and SEPIC topologies - designed specifically for automotive-grade illumination, portable display backlighting, and high-brightness flash applications.
FAQ
What is the maximum LED string voltage supported by the LM3410YMF/NOPB?
The LM3410YMF/NOPB supports output voltages up to 24 V, enabling drive of up to seven 3.4-V white LEDs in series. This limit is defined by the absolute maximum SW pin rating (26.5 V) and internal current-limit architecture. Exceeding 24 V risks violating the recommended operating condition for VSW, potentially triggering overvoltage stress or premature failure. Always verify headroom for diode forward drop and ripple in final layout.
Does the LM3410YMF/NOPB require external compensation components?
No, the LM3410YMF/NOPB features fully internal compensation, eliminating the need for external RC networks or type-II/III compensators. This simplifies design, reduces bill-of-materials cost, and improves stability across input voltage, load, and temperature variations - confirmed in TI's SNVS541H datasheet Section 7.1 and Figure 10.
Can the LM3410YMF/NOPB operate in SEPIC topology, and what modifications are needed?
Yes, the LM3410YMF/NOPB supports SEPIC operation per TI Application Note SLVA394. No IC modification is required - only external component changes: add coupling capacitor C2, second inductor L2, and reconfigure D1/C1 placement. The same FB, DIM, and SW pins function identically; duty cycle equations and current sensing remain unchanged from boost mode.
What is the minimum PWM dimming frequency supported on the DIM pin of the LM3410YMF/NOPB?
The LM3410YMF/NOPB supports PWM dimming frequencies as low as 1 Hz on the DIM pin, per Section 7.3.2 of the SNVS541H datasheet. At frequencies below 200 Hz, visible flicker may occur; TI recommends 200 Hz–1 kHz for smooth dimming down to µA-level currents. The DIM pin draws only 100 nA, enabling direct MCU GPIO drive without buffering.
How does thermal shutdown behave on the LM3410YMF/NOPB during sustained overload?
The LM3410YMF/NOPB activates thermal shutdown at 165°C junction temperature (TJ) and remains latched off until TJ falls to ~150°C, providing 15°C hysteresis. During shutdown, SW goes high-impedance, VIN current drops to 80 nA, and FB/DIM retain their states. Recovery is automatic - no reset signal or power cycle is needed, ensuring robust fault handling in enclosed automotive or industrial enclosures.
LM3410YMF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- SEPIC, Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 3V ~ 24V
- Current - Output / Channel:
- 2.8A (Switch)
- Frequency:
- 525kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM3410YMF/NOPB FAQ
1.How can I place an order for LM3410YMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410YMF/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM3410YMF/NOPB reliable?
The price and inventory of LM3410YMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410YMF/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410YMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410YMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410YMF/NOPB?
LM3410YMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410YMF/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM3410YMF/NOPB?
For technical support, including LM3410YMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410YMF/NOPB requirements.
6.How does Aetrix verify that LM3410YMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410YMF/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM3410YMF/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410YMF/NOPB?
All LM3410YMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410YMF/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM3410YMF/NOPB part is unused and in its original packaging.
Return procedure for LM3410YMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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